Improvement in thill-couplings



- 3H L; P. LARsoN.

` i lmprovemenfxin- Thill Coupling.`

NO.. 122,838, I Patentedlam,1872x UNITED STATES LABS P. LARSON, OF YONKERS, NEW, YORK.

IMPROVEMENT IN THILL-COUPLINGS.

Specification forming part of Letters Patent No. 122,838, dated January 16, 1872.

To all whom it may concern:

Be it known that I, LABS P. LARSON, of Yonkers, in the county of Westchester and State of New York, have invented a new and Improved Shaft-Ooupli n g 5 and Ido hereby declare the following to be a full, clear, and exact description thereof, which will enable those skilled in the art to make and use the same, reference being had to the accompanying drawing forming part of this specification, in which drawing- Figure 1 represents a vertical section of my invention transversely to the axle of the vehicle to which my coupling is attached. Fig. 2 is a plan or top View of the same.

Similar letters indicate corresponding parts.

This invention consists in the arrangement of a chamber on the top of the clip-bar said chamber being intended for the reception of a cushion, while the sides of the chamber form the bearings for a pin surrounded by a soft and elastic packing', and intended to retain the thill or shaft-iron which terminates in an open hook in such a manner that when the shaft is in its working position it is not liable to become disengaged spontaneously, and at the saine time the cushion and the packing on the coupling-pin ei'ectually prevent rattling; and furthermore, by turning up the shaft or thill it can be readily disengaged from the axle without removing any part of the coupling.

In the drawing, the letter A designates the clip, which straddles the axle B, and the ends of which pass through the clip-bar O, being retained in position by nuts a c, as shown in Fig. l of the drawing. The clip-bar O extends in front of the axle, and from it rises a chamber, I), the sides of which form the bearing for the coupling-pin b. This pin is surrounded by a soft packing-tube, c, by preference made of India rubber, and the chamber D contains a cushion, d, also of India rubber or other soft and elastic material, so that when the thill or shaft-iron E is introduced, its end is conned between the packing-tube c and the cushion d, and the rattling noise, which would be inevitable if the shaft-iron should be allowed to come in contact with any metallic parts, is ei'ectually prevented. The end of the shaftiron forms a hook, f, which can be connected to 0r disconnected from the coupling-pin without removing any portion of the coupling, and at the same time, when the shaft is in its work# ing position, it is not liable to become disengaged. The clip-bar O is, by preference, cast solid with the chamber l), and by these means a durable and superior coupling can be manufactured at a 10W price. i

VVh-at I claim as new, and desire to secure by Letters Patent, is-

1. The chamber D, containing a cushion, d, and forming the bearings for the conpling-pin b, which is surrounded by a soft packing-tube, c, in combination with the shaft-iron E, constructed and operating substantially as set forth.

of October, 1871.

LABS P. LARSON.

Witnesses W. HAUFE,

E. F. KASTENHUBER. (31) 

